Electric-locomotive truck



' w. M. SHEEHAN ELECTRIC LQcoMoTIvE TRUCK Filed Jupe 9 1926 n v"2 sums-sneer .1

July s, 1921. Y 1,634,308

W. M SHEEHAN ELECTRIC LoconoT'Ivs TRUCK A Filed June 9 1925 essuyer-sheet 2 i" l 1 l o I l l J fij l x ff J 7 -wf- Y- Invader W/y/famMS/zee/m Patented July 5, 1927.

UNITED' STATES PATENT IfOFFICE.

WILLIAM M. SHEEHAN, OF ST. LOUIS, MISSOURI, ASSIGNOR TO COMMONWEALTH STEEL COMPANY,

0F GRANITE CIT`Y,

ILLINOIS, .A CORPORATION OE NEW JERSEY.

ELECTRIC-LOCOMOTIVE' TRUCK.

Application led June 9, 1926. Serial No. 114,743.

to railway rolling electric locomotives,

and consists in an improved truck structure adapted to One of the objects provide a plurality of truck frame adapted be used on such locomotives.

of my invention is to air conduits in the to receive a current of air from the locomotive superstructure and to deliver the same to a plurality of motors mounted on the truck.

Another object of vide in such a truck member located near and connecting the the transom and other by means of formed integrally wheel pieces and stresses from the piecesand to carry my invention is to proa single main transom the center of the truck wheel pieces and to brace wheel pieces yfrom each corner gussets preferably with the transom an adapted to transmit load transom into the wheel the brake loads into the transom and wheel pieces.

Another object of my invention is to accommodate brake rigging elements by providing points of suspension for the brake hangers and dead lever located above the level of the body of the truck frame.,

These and other various invention are secured by the structure detail objects of described below and illustrated in the accompanying drawings, in

Figure 1 isa top which-7- view of a four wheel truck frame embodymg my invention.

Figu

re 2 is a side elevation of the same.

Figure 3 is a longitudinal vertical section taken on the center line Figures 4 and 5 are tions taken on lines tively, of Figure 1. Figure 6 is in part a vertical transverse 6-6 ozt Figure 1 and in section taken on line 3-3 of Figure 1. vertical transverse sec- 4-4 and 5-5, respecpart is an end elevation of the truck.

The truck frame includes wheel pieces 1,

end rails 2, and a transom the wheel pieces.

Corner `gussets 4 ar 3 `which connects e provided between the transom and wheelv pieces and each corner gusset has a longitudinal rib 5, extending ownwardly toward the lower portion of the transom,

and has a transverse rib 6 extending downwardly toward the inner wall of the adjacent wheel piece 1. On the upper faces ot' the gussets 4 I provide upstanding lugs 7 and between these lugs the gusset is provided with openings 8 through whichl brake rigging elements may extend. For instance, I show the brake lever 9 extending throu h thecentral opening 8 and connected to. tie piston of a brake cylinder 10 mounted on a pad 18 on the upper portion of the frame, and I also show brake hangers 11 extending through the side openings 8 and pivotally connected to the lugs. A brake dead lever 12 is similarly pivoted to lug 7. Circular pads 7a on the side openings Shave small surfaces machined to form suitable bearings for the brake hangers and the central opening 8 is provided with elongated pads 7b to form a suitable bearing for the moving lever 9.

The transom is shown as comprising a series of vertical walls spaced from eac other and connected by top and bottom walls so as to form a box-l1ke member or a series of box-like members extending between the wheel pieces.- The outer walls of the transom curve into the inner walls of the wheel pieces as indicated at 13.. The upper wall of the transom has lsuitable inlet openings 14 provided in front and in rear of the center plate supporting portion 15 and the vertical Walls below the top Wall provide an air passage from each of the openings 14 to a suitable opening 16 in the outer wall of the transom, opening 16 being located toone side ofthe longitudinal center line of the truck and the openings on opposite sides of the transom being located on opposite sides of the longitudinal center line of the truck.

It is desirable that the interior of the air conduit be. machined in part so as to provide a smooth surface for the application of telescopic tubes (not detailed) -which connect the transom-air conduit with the interior oi the motr housing', and small openings 17, opposite large openings 16,are provided for the insertion of a boring bar extendin transversely of the transom. It is inten ed that each of the openings 17 willbe closed by a plate welded to the metal surrounding the opening after the machining of the air duct has been completed.

In view of the amount of metal removed from the walls having openings 16, I prefer to reinforce these walls by ianged ribs 19 located substanti ally below each of the openings 16. i

The wheel pieces are shown as having integral pedestal portions 20, the u per p0rt-ions of which are formed by arc es 2l on the wheel pieces, and the depressed portion of each wheel piece between the pedestals enables me to use the truck with'a superstructure frame and side bearings projecting downwardly below the tops of the wheels at the bolster.

Suitable brackets 22 are provided on the side walls of the transom for the purpose of mounting the motors, one of which is indicated at 23.

Some of the features of my present truck are shown in. my copending application Serial Number 114,742 in which I describe and Claim a transom formin an air conduit with a centrally located inlet openingand with a plurality of outlet openings leading therefrom, the conduit being supplied with air from the superstructure through a single inlet opening. My present invention contemplates the use of a plurality of air passageways leading to the inlet. openin s 14 wit-h the currents of air maintained w olly separate from each other in the truck conf duits.

I claim:

1. In a locomotive truck transom, spaced air ducts formed by the transom walls and closed to each other. y

2. In a locomotive truck transom, transverse'air ducts formed by the transom walls and spaced longitudinally of the truck, and a center plate supporting portion between said ducts.

3. A locomotive truck frame transom member having integral air ducts each comprising in part a closed box with inlet and outlet openings for air currents, said openings being located, respectively, in the top of the transom inthe longitudinal center line of the truck and in 'one of the vertical walls of the transom at' one side of said cen`- ter line.

4. In a locomotive truck transom, a center plate supporting portion, an air duct on each side of said transom, there being downwardly extending inlet openings in the top of said transom, and outlet openings below the top of said transoms discharginglongit-udinally ofthe tri-,nek in opposite directions.

5. In a locomotive truck transom, a center lplatesupporting portion, an air duct on eac wardly extending inlet openings in the top of said transom, and outlet'openings below the to of said transoms discharging longitudina ly of the truck in opposite directions, and onopposite sides of the longitudinal center line of the truck.

side of sa id transom, there being down-` 6.v A one piece casting including a locomotive truck transom with integral` air ducts formed therein and leading from spaced pointsl on top of the transom to oppositely facing discharge openings in the side walls I Vsaid transom between said first mentioned openings.

v8. In an electric locomotive truck, wheel pieces, a transom connecting said wheel pieces andl including a lurality of vertical walls for transmitting oad stresses to said -wheel pieces and forming portions of passages :tor conducting air to the locomotive motors.

9. A one-piece cast truck' frame compris- Aing wheel pieces and transom elements including parallel air duct walls extending across the frame, and a center plate support.

10. A casting comprising a truck wheel piece, a transom, and corner gussets between said wheel piece and transom and inte al therewith and provided with upstan ing lugsi for mounting brake rig ing elements.

11. In a truck, a frame including a transom, a wheel piece, a corner gusset between .said transom and wheel piece, lu s extending upwardly from said gusset, t ere being openings in said gusset between said lugs, a brake cylinder mounted on said truck frame, and a brake lever extending through one of said openings and operatively connected to said c linder,

12. In a truc a 'truck frame includin a transom, a wheel piece, a corner gusset tween said transom and wheel pieceyfa plurality of parallel lugs extending upwardly from said gusset, there beingopemngs between said lugs, a brake cylinder mounted on the to of said frame, a brake lever extending tlirough one of said openings and operatively connected to said c one or more brake hangers exten n through pther of said openings and pivoted on said I3. In a cast frame for a wheel piece, a transom, a horizontal corner gusset connecting said wheel piece and transom, upstanding brake riggin mounting lugs on said sset, and depen ing lugs on sa1d gusset integrally connecting the same to said wheel piece and transom at points spaced from said transom and wheel piece, respectively.

14. In a locomotive truck cast frame, a wheel piece, a transom, a horizontal corner gusset connecting the upper portion of said wheel piece and transom, upstanding brake linder, and

locomotive trucks,

rigging mounting lugs on said gusset, and a riggin mounting lugs on said gusset, and a depending lug on said gusset -integrally condepen ing lug on said gusset integrally con- 11 .heating the same to said transom at a point neeting the same to said Wheel piece at a spaced from said Wheel piece. point spaced from said transom.

f15. In a vlocomotive truck east frame, a In testimony whereof I hereunto aiix my wheel piece, :i transom, a horizontal corner signature this 3rd day of'J une, 1926. gussetconnecting the upper portion of said Wheel piece and transom, upstanding brake WILLIAM M. SHEEHAN, 

